发明名称 |
CRYOTHERAPY PROBE |
摘要 |
A method of cooling a material including the steps of (i) providing a cryotherapy instrument, (ii) positioning a portion of the cryotherapy instrument adjacent the material to be cooled, and (iii) circulating a cryogenic fluid through the cryotherapy instrument under physical conditions near a critical point of a liquid-vapor system for the cryogenic fluid. The critical point defines a point in a phase diagram of the liquid-vapor system where molar volumes are substantially equivalent for liquid and gas, whereby vapor lock associated with cooling of the cryotherapy instrument is avoided. |
申请公布号 |
US2014221991(A1) |
申请公布日期 |
2014.08.07 |
申请号 |
US201314087947 |
申请日期 |
2013.11.22 |
申请人 |
LITTRUP PETER J.;BABKIN ALEXEI V.;DUNCAN ROBERT V.;KERKAR PRAMOD;BOLDAREV SERGEY T. |
发明人 |
LITTRUP PETER J.;BABKIN ALEXEI V.;DUNCAN ROBERT V.;KERKAR PRAMOD;BOLDAREV SERGEY T. |
分类号 |
A61B18/02 |
主分类号 |
A61B18/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method of cooling a material comprising the steps of:
providing a cryotherapy instrument; positioning a portion of the cryotherapy instrument adjacent the material to be cooled; circulating a cryogenic fluid through the cryotherapy instrument under physical conditions near a critical point of a liquid-vapor system for the cryogenic fluid, wherein the critical point defines a point in a phase diagram of the liquid-vapor system where molar volumes are substantially equivalent for liquid and gas, whereby vapor lock associated with cooling of the cryotherapy instrument is avoided. |
地址 |
Bloomfield Hills MI US |